Consequently, such aircraft engines are normally located externally, in a separate nacelle or pod, attached to the wing, or the rear fuselage.
By contrast, low-bypass ratio military turbofans often feature high specific thrust (45-110 lbf/(lb/s)), which reduces the engine's cross-sectional area, which more easily accommodates a narrow fuselage, which minimizes drag.
The total fuel flow (main combustor plus afterburner) is fixed by the temperature rise from air intake to nozzle and, for a given airflow and changes little with dry specific thrust.
The situation is completely reversed for a high (dry) specific thrust.
Consequently, engine designers must select a level of dry specific thrust that is suitable for the application